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Finding the Fourth Proportional to 73,935,332.70, 101,996,813.97 and 47,838,357.42

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Solution

The fourth proportional to 73,935,332.70, 101,996,813.97 and 47,838,357.42 is: 65,994,969.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,935,332.70 : 101,996,813.97 = 47,838,357.42 : x
  2. Step 2: Convert to fraction form
    73,935,332.70/101,996,813.97 = 47,838,357.42/x
  3. Step 3: Cross multiply
    73,935,332.70x = 101,996,813.97 × 47,838,357.42
  4. Step 4: Simplify right side
    73,935,332.70x = 4,879,360,042,398,109
  5. Step 5: Solve for x
    x = 4,879,360,042,398,109/73,935,332.70
  6. Step 6: Final answer
    x = 65,994,969.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.